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The Cometic exhaust valve stem seal for Subaru EJ-series engines combines a Viton sealing lip with a metal jacket to control exhaust-side leakage and extend service life. It’s intended for use on EJ-series Subaru applications where a durable exhaust valve seal is needed. Cometic validates gaskets and seals with in-house dyno work and street/track testing to ensure quality and reliability.
Cometic Subaru EJ Series Viton Exhaust Valve Stem Seal - Metal Jacket
